Oleg Sapphire Books in Order

A mysterious System transforms the world, turning half its population into zombies and forcing the rest to struggle for survival. For a disaffected sociopath, the catastrophe offers an unsettling opportunity to begin life again.

Varg has received a chance to remake his life under the System, but survival is far from assured. As unfamiliar enemies and potential allies gather around him, he must decide which relationships pose the greater danger.

Varg explores worlds shaped by the System as invading gnomes threaten to carry humans away. New assignments lead him among snakes and elves, while necromancers arrive to make his own world still more dangerous.

Varg considers himself an experienced survivor, but the System keeps devising unfamiliar trials. Journeys into new worlds bring possible friends, ancient vampires, and people needing rescue, testing how much his earlier victories have actually taught him.

Varg discovers that zombies are only one danger in a much larger struggle. With Kaia's son Zhorik helping him, he faces factions and powerful creatures whose competing plans share an ambition to conquer and enslave the world.

Murdered after forty years as an unbeatable antiques expert, an appraiser awakens in another world with a gift for identifying objects and creatures. Getting rich sounds simple, until carnivorous trees and hostile skeletons complicate survival.

Varg's refusal to retreat puts him in the path of powerful beings who cannot act directly on Earth. Their disciples create plenty of danger, as encounters with pirates and burning islands lead toward a bloody celebration.

The System rewards Varg's latest trials with a castle, a possession he unexpectedly grows attached to. Its unusual nature also attracts his enemies, forcing him to defend a home he has no intention of surrendering.

The System sends Varg into another round of dangerous adventures involving an unfamiliar race and returning enemies. When people close to him are captured, rescuing them becomes a challenge unlike the solitary survival he once expected.

A legendary creator of chimeras retreats to another world and opens a veterinary clinic, hoping for rest. Instead, the supposedly ideal refuge forces him to revive his monster-making talents simply to stay alive.

An appraiser has established himself in another world with a living tower and a skeleton workforce. Rising expenses and unwanted visitors interrupt his plans to grow rich, while rival treasure seekers complicate exploration of the Deadlands.

After clashing with followers of a dark goddess, Varg receives an invitation to the Thousand Warriors Ball. New trials await there, and protecting his companions will demand as much vigilance as surviving the System's latest tasks.

Varg faces a crisis that threatens everything he values, including his own survival. Old decisions bring unexpected benefactors and new allies, but help from his unstable acquaintances may create dangers as serious as those it resolves.